Limiting device for ballastless track bed slab construction

Abstract

The invention discloses a limiting device for ballastless track bed slab construction, and relates to the technical field of ballastless track bed slab limiting, the limiting device limits a ballastless track bed slab, the limiting device comprises a main body mechanism, a hoisting mechanism, an orientation mechanism and a detection positioning mechanism, the main body mechanism is connected with the hoisting mechanism, the main body mechanism is connected with the orientation mechanism, and the detection positioning mechanism is connected with the hoisting mechanism. The main body mechanism is connected with the detection positioning mechanism, the hoisting mechanism is connected with the detection positioning mechanism, the main body mechanism comprises a driving shell, a driving bracket and a rotating support disc, a circular rotating groove is formed in the driving shell, the driving shell and the rotating support disc are rotationally connected through the circular rotating groove, and the driving bracket and the rotating support disc are fixedly connected; the driving shell is connected with the detection positioning mechanism, the detection positioning mechanism comprises a mounting base, a slide rheostat and a fixed separation blade, the mounting base is slidably connected with the driving shell, and the bottom of the mounting base is fixedly connected with a driving hydraulic cylinder.

Description

Technical Field

[0001] The invention relates to the technical field of ballastless track bed plate limiting technology, in particular to a limiting device for ballastless track bed plate construction. Background Art

[0002] With the rapid development of high-speed railways and urban rail transit, the requirements for ballastless track bed construction technology are becoming higher and higher. As an important part of high-speed railways and urban rail transit, the construction quality of ballastless track bed directly affects the running safety and riding comfort of trains. During the construction of ballastless track bed, the setting of limit devices is one of the key measures to ensure the accurate position of the track bed.

[0003] The laying accuracy of ballastless track bed slabs is extremely high, and the installation of the limit device for ballastless track bed slabs must be accurate. Conventional laying is mostly carried out after measurement. In this process, errors may occur when manually operating the machine to place the ballastless track bed slabs, resulting in inconsistent gaps between the ballastless track bed slabs, which will not only damage the accuracy and quality of the construction, but also cause loud noise when trains pass by after they are put into use later. Summary of the invention

[0004] The object of the present invention is to provide a limiting device for ballastless track slab construction to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The limiting device limits the ballastless track bed plate, and the limiting device includes a main body mechanism, a hoisting mechanism, an orienting mechanism and a detection and positioning mechanism. The main body mechanism is connected to the hoisting mechanism, the main body mechanism is connected to the orienting mechanism, the main body mechanism is connected to the detection and positioning mechanism, and the hoisting mechanism is connected to the detection and positioning mechanism;

[0007] The main mechanism includes a driving housing, a driving bracket and a rotating support plate. A circular rotating groove is provided on the driving housing. The driving housing and the rotating support plate are rotatably connected through the circular rotating groove. The driving bracket and the rotating support plate are tightly connected. The driving housing is connected to the detection and positioning mechanism.

[0008] The detection and positioning mechanism includes a mounting base, a sliding rheostat and a fixed baffle. The mounting base is slidably connected to the driving housing, the bottom of the mounting base is fastened with a driving hydraulic cylinder, the bottom surface of the driving housing is fastened with a fixed end of the driving hydraulic cylinder, the mounting base is placed on the side of the driving housing facing the placed ballastless track bed plate, the sliding rheostat is fastened to the mounting base, one end of the sliding rheostat is fastened with the fixed baffle, and the fixed baffle extends in a vertical direction toward the sliding rheostat.

[0009] In the limiting device, the device is used to limit the lifting of the ballastless track bed slab. The main mechanism provides overall support for the work of other mechanisms and provides a basis for work. The lifting mechanism is used to grab and lift the ballastless track bed slab to be placed. The directional mechanism provides a track to facilitate the device to move along a certain trajectory to reduce deviation. The detection and positioning mechanism is used to position the new ballastless track bed slab that needs to be placed, so that the distance between the ballastless track bed slabs remains constant, which is not only convenient for the later pouring, but also convenient for uniform force in subsequent use after completion, thereby extending the service life.

[0010] Furthermore, the main mechanism also includes a driving motor and a support rod. A mounting groove is provided on the driving shell, the mounting groove is connected to the circular rotating groove, the driving motor is connected to the driving shell, the driving motor is firmly connected to the mounting groove, the output end of the driving motor is firmly connected to the rotating support plate, one end of the support rod is firmly connected to the rotating support plate, the end of the support rod away from the rotating support plate is firmly connected to the driving bracket, the driving shell is connected to the orienting mechanism, and the driving bracket is connected to the lifting mechanism.

[0011] In the main mechanism, this mechanism is used to provide support for other mechanisms. A connecting mounting groove and a circular rotating groove are provided on the driving shell. The mounting groove is fastened with a driving motor. The output end of the driving motor faces the circular rotating groove. A rotating support plate is rotatably connected to the circular rotating groove. The rotating support plate and the output end of the driving motor are fastened. After the driving motor is started, the rotating support plate will be driven to rotate. A driving bracket is fastened to the rotating support plate. There is a certain angle between the driving bracket and the rotating support plate. The support rod connects the driving bracket and the rotating support plate to provide support for the driving bracket. The driving bracket is used to connect with the lifting mechanism to lift the ballastless track bed plate. After the device is started, the driving motor drives the rotating support plate to rotate, and the lifting mechanism on the rotating support plate grabs the ballastless track bed plate to be placed. Then the driving motor drives the rotating support plate to rotate, so that the lifting mechanism faces the place to be placed.

[0012] Further, the hoisting mechanism includes a fixed plate, a rotating motor, the fixed plate and the driving bracket are fastened together, a rectangular groove is provided on the fixed plate, the rotating motor and the rectangular groove are fastened together, the output end of the rotating motor faces the ground, and an annular rotating groove is provided on the fixed plate. The hoisting mechanism also includes a visual probe, a movable clamping plate, a pushing hydraulic cylinder and a driving rod, the visual probe and the movable clamping plate are fastened together, the detection end of the visual probe faces the ground, an annular protrusion is provided on the movable clamping plate, the movable clamping plate is connected to the fixed plate, the movable clamping plate is slidably connected to the annular rotating groove, the output end of the rotating motor is fastened together with the movable clamping plate, two pushing grooves are provided on the surface of the movable clamping plate facing the ground, the pushing grooves of the movable clamping plate are symmetrically arranged, two pushing hydraulic cylinders are provided, the two pushing hydraulic cylinders are connected to the movable clamping plate, and the two pushing hydraulic cylinders are respectively placed in the two pushing grooves. The fixed end of the pushing hydraulic cylinder is tightly connected to the wall of the pushing groove, and the fixed ends of the two pushing hydraulic cylinders are close to the center of the movable splint. There are two driving rods, and the two driving rods are "T"-shaped. The two driving rods are tightly connected to the two pushing hydraulic cylinders respectively, and the output end of the pushing hydraulic cylinder is tightly connected to one end of the driving rod. The driving rod is slidingly connected to the pushing groove, and the movable splint is connected to the detection and positioning mechanism. The lifting mechanism also includes a telescopic rod and a bed board clamp. There are four telescopic rods, and the four telescopic rods are symmetrically arranged on the movable splint. The telescopic rod is tightly connected to the movable splint, and the four telescopic rods are evenly divided into two groups. The two groups of telescopic rods are tightly connected to the two ends of the two driving rods respectively. There are two bed board clamps, and the bed board clamp is "T"-shaped. One end of a bed board clamp is tightly connected to a group of telescopic rods, and the surface where the other end of the bed board clamp is located is parallel to the ground.

[0013] In the lifting mechanism, the mechanism is used to lift the ballastless track bed plate. The fixed plate and the driving bracket are tightly connected. As the basis of the entire lifting mechanism, a rectangular groove is also provided on the fixed plate. The rotating motor is placed in the rectangular groove. The output end of the rotating motor faces the ground. An annular rotating groove is also provided on the side of the fixed plate facing the ground. The movable clamping plate is slidably connected to the annular rotating groove and stuck in the annular rotating groove. The center of the movable clamping plate is tightly connected to the output end of the rotating motor. After the rotating motor is started, the movable clamping plate is driven to rotate, and the movable clamping plate slides in the annular rotating groove. The fixed plate supports the movable clamping plate to a certain extent. A visual probe is also installed on the movable clamping plate. When the lifting mechanism is transferred to the place where the ballastless track bed plate is to be placed, the visual probe can be used to detect whether one side of the movable clamping plate and the previously placed ballastless track bed plate are in a straight line. The pushing hydraulic cylinder is placed in the pushing groove. The output end of the pushing hydraulic cylinder is tightly connected to the driving rod. After the pushing hydraulic cylinder is started, it will push the driving rod to move in the pushing groove. The two ends of the push groove are fastened with telescopic rods, and the other ends of the two telescopic rods are fastened through the bed plate clamps. After the device is started, the hydraulic cylinder is pushed to push the driving rod away, so that the distance between the two bed plate clamps becomes larger, and the telescopic rod is extended to the bottom of a ballastless track bed plate to be placed, and then the hydraulic cylinder is pushed back to reduce the distance between the two bed plate clamps until the bed plate clamp is stuck on the ballastless track bed plate and cannot be reduced any further. The hydraulic cylinder is pushed to stop driving, the telescopic rod is retracted, and the ballastless track bed plate is lifted. After it is transferred to the area to be placed, the distance needs to be adjusted. During the adjustment process, the visual probe is always started to detect whether one side of the movable clamp and the last placed ballastless track bed plate are in a straight line to prevent subsequent crooked placement. After reaching the appropriate position, the telescopic rod is extended to make the bottom of the bed plate clamp contact with the ground, and the hydraulic cylinder is pushed to start, so that the distance between the two bed plate clamps becomes larger, and the bed plate clamp and the ballastless track bed plate are separated. Then the telescopic rod is retracted to complete the placement of a ballastless track bed plate.

[0014] Furthermore, the directional mechanism includes a directional track, a driven roller and a servo motor. The directional track is laid on the ground. There are two directional tracks, which are placed in parallel. The track of the directional track is the path of the ballastless track bed plate to be laid. A moving groove is provided on the directional track. The track of the moving groove is consistent with the track of the directional track. The driven roller is fastened to the bottom of the driving shell by a rotating rod. There are no less than four driven rollers. The driven roller is connected to the directional track, the driven roller is meshed with the moving groove, and the servo motor drives the driven roller.

[0015] In the directional mechanism, the mechanism is used to specify the path for placing the ballastless track bed slab. The directional track is parallel to the path of the ballastless track bed slab to be placed. A movable groove is provided on the directional track. The driven roller is engaged with the movable groove. The driven roller and the driving housing are rotatably connected by a rotating rod. The servo motor drives the driven roller to move along the directional track with the driving housing. After the device is started, the servo motor starts to drive the driven roller to move along the directional track with the driving housing, which is convenient for the placement of the ballastless track bed slab.

[0016] Furthermore, the detection and positioning mechanism also includes a movable baffle, a magnetic block and a reset spring. One end of the movable baffle is tightly connected to the sliding rheostat. The movable baffle extends in a direction perpendicular to the sliding rheostat. The movable baffle is made of metal. One end of a movable splint close to the last placed ballastless track bed plate is tightly connected to the magnetic block. The magnetic block is energized by connecting wires and a power supply. A reset spring is tightly connected between the fixed baffle and the movable baffle.

[0017] In the detection and positioning mechanism, the mechanism detects the distance between the gap between the ballastless track bed plate to be placed and the ballastless track bed plate that has been placed. After the driving housing moves to a certain position, the hydraulic cylinder drives the mounting base to fall, and the fixed baffle plate that is tightly connected to the sliding rheostat fits with one side of the last placed ballastless track bed plate. Then the telescopic rod extends, so that the bed plate clamp brings the ballastless track bed plate down. The telescopic rod stops extending before it falls completely. At this time, the distance between the bed plate clamp and the ground is less than the height of a ballastless track bed plate, and the distance to the last ballastless track bed plate is relatively close. A magnetic block is tightly connected to the bed plate clamp. The magnetic block is magnetic after being energized. The movable baffle plate that is tightly connected to the sliding plate of the sliding rheostat is attracted and moves with the sliding plate toward the magnetic block until the movable baffle plate fits with the magnetic block. Then the drive The motor drives the rotating support plate to rotate to expand the distance. The rotating motor continuously adjusts the placement angle under the detection of the visual probe to keep the placed slab in a straight line with the previously placed slab. During the movement, because the movable baffle is always in contact with the magnetic block, the movable baffle will be moved together, and the resistance value on the sliding rheostat gradually decreases. When it reaches the critical point, the current can pass. At this time, the driving motor and the rotating motor stop driving, the magnetic block is powered off and loses its magnetism. The movable baffle no longer absorbs the magnetic block, and the driving hydraulic cylinder lifts the mounting base, and the telescopic rod extends, so that the slab clamp fits the ground, pushing the hydraulic cylinder to start, so that the distance between the two slab clamps increases, the slab clamp and the slab are separated, and then the telescopic rod retracts to complete the placement of a slab.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: after the present invention is started, the driving motor drives the rotating support plate to rotate, and the lifting mechanism grabs the ballastless track bed plate to be placed. After completion, the driving motor drives the rotating support plate to rotate, so that the lifting mechanism faces the place to be placed, the servo motor is started, and the driven roller is driven to move the driving shell along the directional track, and it stops after moving to the appropriate position, and the hydraulic cylinder is driven to drive the mounting base to fall, and the fixed baffle plate fastened to the sliding rheostat is in contact with one side of the last placed ballastless track bed plate, and then the telescopic rod is extended, so that the bed plate clamp brings the ballastless track bed plate to fall, and the telescopic rod stops extending when it has not completely fallen. At this time, the distance between the bed plate clamp and the ground is less than the height of a ballastless track bed plate, and the distance to the last ballastless track bed plate is close. A magnetic block is fastened to the bed plate clamp, and the magnetic block has magnetism after being energized, and the movable The movable baffle is attracted and moves with the sliding piece toward the magnetic block until the movable baffle and the magnetic block are attached. Then the driving motor drives the rotating support plate to rotate to expand the distance. The rotating motor continuously adjusts the placement angle under the detection of the visual probe to keep the placement in a straight line with the previously placed ballastless track bed plate. During the movement, because the movable baffle is always in contact with the magnetic block, the movable baffle will be moved together, and the resistance value on the sliding rheostat gradually decreases. When it reaches the critical point, the current can pass. At this time, the driving motor and the rotating motor stop driving, the magnetic block is powered off and loses its magnetism. The movable baffle no longer absorbs the magnetic block, and the driving hydraulic cylinder lifts the mounting base, and the telescopic rod extends, so that the bed plate clamp fits the ground, and the hydraulic cylinder is pushed to start, so that the distance between the two bed plate clamps increases, and the bed plate clamp and the ballastless track bed plate are separated. Then the telescopic rod retracts to complete the placement of a ballastless track bed plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a side view of the present invention;

[0021] Figure 3 for Figure 2 Enlarged view of part A;

[0022] Figure 4 It is a top view of the structure of the present invention;

[0023] Figure 5 for Figure 4 Sectional view;

[0024] Figure 6 for Figure 5 Enlarged view of part B;

[0025] Figure 7 It is a schematic diagram of the structure of the present invention;

[0026] Figure 8 for Figure 7 Enlarged view of detail C.

[0027] In the figure: 1. ballastless track bed plate; 2. main body mechanism; 21. drive housing; 211. mounting groove; 212. circular rotating groove; 22. drive bracket; 23. rotating support plate; 24. drive motor; 25. support rod; 3. lifting mechanism; 31. fixed plate; 311. rectangular groove; 312. annular rotating groove; 32. rotating motor; 33. movable clamp; 34. pushing hydraulic cylinder; 35. drive rod; 36. telescopic rod; 37. bed plate grabbing clamp; 4. directional mechanism; 41. directional track; 411. moving groove; 42. driven roller; 5. detection and positioning mechanism; 51. mounting base; 52. sliding rheostat; 53. fixed baffle; 54. movable baffle; 55. magnetic block; 56. reset spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example: Figure 1-Figure 8 As shown, the present invention provides a technical solution of a limit device for ballastless track bed plate construction, the limit device limits the ballastless track bed plate 1, the limit device includes a main body mechanism 2, a hoisting mechanism 3, an orienting mechanism 4 and a detection and positioning mechanism 5, the main body mechanism 2 is connected to the hoisting mechanism 3, the main body mechanism 2 is connected to the orienting mechanism 4, the main body mechanism 2 is connected to the detection and positioning mechanism 5, and the hoisting mechanism 3 is connected to the detection and positioning mechanism 5;

[0030] The main mechanism 2 includes a driving housing 21, a driving bracket 22 and a rotating support plate 23. The driving housing 21 is provided with a circular rotating groove 212. The driving housing 21 and the rotating support plate 23 are rotatably connected through the circular rotating groove 212. The driving bracket 22 and the rotating support plate 23 are tightly connected. The driving housing 21 is connected to the detection and positioning mechanism 5.

[0031] The detection and positioning mechanism 5 includes a mounting base 51, a sliding rheostat 52 and a fixed baffle 53. The mounting base 51 is slidably connected to the drive housing 21. A driving hydraulic cylinder is fastened to the bottom of the mounting base 51. The bottom surface of the drive housing 21 is fastened to the fixed end of the driving hydraulic cylinder. The mounting base 51 is placed on the side of the drive housing 21 facing the placed ballastless track bed plate 1. The sliding rheostat 52 is fastened to the mounting base 51. One end of the sliding rheostat 52 is fastened to the fixed baffle 53. The fixed baffle 53 extends in a vertical direction toward the sliding rheostat 52.

[0032] In the limiting device, the device is used to limit the lifting of the ballastless track bed plate 1, the main mechanism 2 provides overall support for the work of other mechanisms and provides a basis for work, the lifting mechanism 3 is used to grab and lift the ballastless track bed plate 1 to be placed, the orienting mechanism 4 provides a track to facilitate the device to move along a certain trajectory to reduce deviation, and the detection and positioning mechanism 5 is used to position the new ballastless track bed plate 1 to be placed, so that the distance between the ballastless track bed plates 1 remains constant, which is not only convenient for the later pouring, but also convenient for uniform force in subsequent use after completion, thereby extending the service life.

[0033] The main mechanism 2 also includes a driving motor 24 and a support rod 25. A mounting groove 211 is provided on the driving shell 21. The mounting groove 211 is communicated with the circular rotating groove 212. The driving motor 24 is connected to the driving shell 21. The driving motor 24 and the mounting groove 211 are tightly connected. The output end of the driving motor 24 is tightly connected to the rotating support plate 23. One end of the support rod 25 is tightly connected to the rotating support plate 23. The end of the support rod 25 away from the rotating support plate 23 is tightly connected to the driving bracket 22. The driving shell 21 is connected to the orienting mechanism 4. The driving bracket 22 is connected to the lifting mechanism 3.

[0034] In the main mechanism 2, the mechanism is used to provide support for other mechanisms. A connecting mounting groove 211 and a circular rotating groove 212 are provided on the driving housing 21. The mounting groove 211 is fastened with a driving motor 24. The output end of the driving motor 24 faces the circular rotating groove 212. A rotating support plate 23 is rotatably connected to the circular rotating groove 212. The rotating support plate 23 and the output end of the driving motor 24 are fastened. After the driving motor 24 is started, the rotating support plate 23 will be driven to rotate. The driving bracket 2 is fastened to the rotating support plate 23. 2. There is a certain angle between the driving bracket 22 and the rotating support plate 23. The support rod 25 connects the driving bracket 22 and the rotating support plate 23 to provide support for the driving bracket 22. The driving bracket 22 is used to connect with the lifting mechanism 3 to lift the ballastless track bed plate 1. After the device is started, the driving motor 24 drives the rotating support plate 23 to rotate, and the lifting mechanism 3 on the rotating support plate 23 grabs the ballastless track bed plate 1 to be placed. After that, the driving motor 24 drives the rotating support plate 23 to rotate, so that the lifting mechanism 3 faces the place to be placed.

[0035] The hoisting mechanism 3 includes a fixed plate 31 and a rotating motor 32. The fixed plate 31 is fastened to the driving bracket 22. A rectangular groove 311 is provided on the fixed plate 31. The rotating motor 32 is fastened to the rectangular groove 311. The output end of the rotating motor 32 faces the ground. An annular rotating groove 312 is provided on the fixed plate 31. The hoisting mechanism 3 also includes a visual probe, a movable clamping plate 33, a pushing hydraulic cylinder 34 and a driving rod 35. The visual probe is fastened to the movable clamping plate 33. The detection end of the visual probe faces the ground. An annular protrusion is provided on the movable clamping plate 33. The movable clamping plate 33 is connected to the fixed plate 31. The movable clamping plate 33 is slidably connected to the annular rotating groove 312. The output end of the rotating motor 32 is fastened to the movable clamping plate 33. Two pushing grooves are provided on the surface of the movable clamping plate 33 facing the ground. The pushing grooves of the movable clamping plate 33 are symmetrically arranged. Two pushing hydraulic cylinders 34 are provided. The two pushing hydraulic cylinders 34 are connected to the movable clamping plate 33. The two pushing hydraulic cylinders 34 are respectively placed in the two pushing grooves In the embodiment, the fixed end of the pushing hydraulic cylinder 34 is tightly connected to the wall of the pushing groove, the fixed ends of the two pushing hydraulic cylinders 34 are close to the center of the movable clamping plate 33, two driving rods 35 are provided, and the two driving rods 35 are "T" shaped. The two driving rods 35 are tightly connected to the two pushing hydraulic cylinders 34 respectively, the output end of the pushing hydraulic cylinder 34 is tightly connected to one end of the driving rod 35, the driving rod 35 is slidably connected to the pushing groove, the movable clamping plate 33 is connected to the detection and positioning mechanism 5, and the lifting mechanism 3 also includes a telescopic rod 36 and a bed board clamp 37, four telescopic rods 36 are provided, and the four telescopic rods 36 are symmetrically arranged on the movable splint 33, the telescopic rods 36 and the movable splint 33 are fastened together, the four telescopic rods 36 are evenly divided into two groups, the two groups of telescopic rods 36 are fastened together with the two ends of the two driving rods 35 respectively, and two bed board clamps 37 are provided, and the bed board clamps 37 are "T" shaped, one end of one bed board clamp 37 is fastened together with a group of telescopic rods 36, and the surface where the other end of the bed board clamp 37 is located is parallel to the ground.

[0036] In the hoisting mechanism 3, the mechanism is used to hoist the ballastless track bed plate 1. The fixed plate 31 and the driving bracket 22 are tightly connected. As the basis of the entire hoisting mechanism 3, a rectangular groove 311 is also provided on the fixed plate 31. The rotating motor 32 is placed in the rectangular groove 311. The output end of the rotating motor 32 faces the ground. An annular rotating groove 312 is also provided on the side of the fixed plate 31 facing the ground. The movable clamping plate 33 is slidably connected to the annular rotating groove 312 and is stuck in the annular rotating groove 312. The center of the movable clamping plate 33 is tightly connected to the output end of the rotating motor 32. The rotating motor 3 After starting, the movable clamping plate 33 is driven to rotate, and the movable clamping plate 33 slides in the annular rotating groove 312. The fixed plate 31 supports the movable clamping plate 33 to a certain extent. A visual probe is also installed on the movable clamping plate 33. When the hoisting mechanism 3 is transferred to the place where the ballastless track bed plate 1 is to be placed, the visual probe can be used to detect whether one side of the movable clamping plate 33 and the last placed ballastless track bed plate 1 are in a straight line, and the push hydraulic cylinder 34 is placed in the push groove. The output end of the push hydraulic cylinder 34 is tightly connected to the driving rod 35. After the push hydraulic cylinder 34 is started, it will push the driving rod 35. The rod 35 moves in the pushing groove, and the two ends of the pushing groove are fastened with telescopic rods 36, and the other ends of the two telescopic rods 36 are fastened and connected by bed plate clamps 37. After the device is started, the hydraulic cylinder 34 is pushed to push the driving rod 35 away, so that the distance between the two bed plate clamps 37 becomes larger, and the telescopic rod 36 extends to the bottom of a ballastless track bed plate 1 to be placed, and then the hydraulic cylinder 34 is pushed back to pull back, so that the distance between the two bed plate clamps 37 becomes smaller, until the bed plate clamps 37 are stuck on the ballastless track bed plate 1 and cannot be reduced any further, and the hydraulic cylinder 34 is pushed to stop driving, and the telescopic rod 36 Contract, lift the ballastless track bed plate 1, and after it is moved to the area to be placed, the distance needs to be adjusted. During the adjustment process, the visual probe is always started to detect whether one side of the movable clamp 33 and the previously placed ballastless track bed plate 1 are in a straight line to prevent subsequent crooked placement. After reaching the appropriate position, the telescopic rod 36 is extended to make the bottom of the bed plate clamp 37 contact the ground, pushing the hydraulic cylinder 34 to start, so that the distance between the two bed plate clamps 37 becomes larger, and the bed plate clamp 37 and the ballastless track bed plate 1 are separated. Then the telescopic rod 36 retracts to complete the placement of a ballastless track bed plate 1.

[0037] The orienting mechanism 4 includes an orienting rail 41, a driven roller 42 and a servo motor. The orienting rail 41 is laid on the ground. There are two orienting rails 41, which are placed in parallel. The track of the orienting rail 41 is the path of the ballastless track bed slab 1 to be laid. A moving groove 411 is provided on the orienting rail 41. The track of the moving groove 411 is consistent with the track of the orienting rail 41. The driven roller 42 is fastened to the bottom of the driving housing 21 by a rotating rod. There are no less than four driven rollers 42, which are connected to the orienting rail 41, and the driven roller 42 is meshed with the moving groove 411. The servo motor drives the driven roller 42.

[0038] In the orienting mechanism 4, the mechanism is used to specify the path for placing the ballastless track bed slab 1. The directional track 41 is parallel to the path of the ballastless track bed slab 1 to be placed. A movable groove 411 is provided on the directional track 41. The driven roller 42 is engaged with the movable groove 411. The driven roller 42 and the driving housing 21 are rotatably connected through a rotating rod. The driven roller 42 is driven by a servo motor so that the driven roller 42 moves along the directional track 41 with the driving housing 21. After the device is started, the servo motor is started to drive the driven roller 42 to move along the directional track 41 with the driving housing 21, so as to facilitate the placement of the ballastless track bed slab 1.

[0039] The detection and positioning mechanism 5 also includes a movable baffle 54, a magnetic block 55 and a reset spring 56. One end of the movable baffle 54 is tightly connected to the sliding rheostat 52. The movable baffle 54 extends in a vertical direction toward the sliding rheostat 52. The movable baffle 54 is made of metal. One end of a movable clamping plate 33 close to the last placed ballastless track bed plate 1 is tightly connected to the magnetic block 55. The magnetic block 55 is energized by connecting wires and a power supply. A reset spring 56 is tightly connected between the fixed baffle 53 and the movable baffle 54.

[0040] In the detection and positioning mechanism 5, the mechanism detects the distance between the gap between the ballastless track bed plate 1 to be placed and the already placed ballastless track bed plate 1. After the driving housing 21 moves to a certain position, the driving hydraulic cylinder drives the mounting base 51 to fall, and the fixed baffle 53 fastened to the sliding rheostat 52 fits with one side of the last placed ballastless track bed plate 1. Then the telescopic rod 36 extends, so that the bed plate grabbing clamp 37 falls with the ballastless track bed plate 1, and the ballastless track bed plate 1 is not placed. When the telescopic rod 36 is completely dropped, it stops extending. At this time, the distance between the bed plate clamp 37 and the ground is less than the height of a ballastless track bed plate 1, and the distance to the previous ballastless track bed plate 1 is relatively close. A magnetic block 55 is fastened to the bed plate clamp 37. The magnetic block 55 is magnetic after being energized. The movable baffle 54 fastened to the slider of the sliding rheostat 52 is attracted and moves toward the magnetic block 55 with the slider until the movable baffle 54 fits with the magnetic block 55. Then the electric drive is driven to move the movable baffle 54 to the magnetic block 55. The machine 24 drives the rotating support plate 23 to rotate to expand the distance. The rotating motor 32 continuously adjusts the placement angle under the detection of the visual probe to keep the placed ballastless track bed plate 1 in a straight line. During the movement, because the movable baffle 54 is always in contact with the magnetic block 55, the movable baffle 54 will be moved together, and the resistance value on the sliding rheostat 52 gradually decreases. When it reaches the critical point, the current can pass. At this time, the driving motor 24 and the rotating motor 32 stop driving, the magnetic block 55 is powered off and loses its magnetism. The movable baffle 54 no longer absorbs the magnetic block 55, and the driving hydraulic cylinder lifts the mounting base 51. The telescopic rod 36 extends, so that the bed plate clamp 37 is in contact with the ground, and the hydraulic cylinder 34 is pushed to start, so that the distance between the two bed plate clamps 37 becomes larger, and the bed plate clamp 37 and the ballastless track bed plate 1 are separated. Then the telescopic rod 36 retracts to complete the placement of a ballastless track bed plate 1.

[0041] Working principle of the present invention: After the present invention is started, the driving motor 24 drives the rotating support plate 23 to rotate, and the hoisting mechanism 3 grabs the ballastless track bed plate 1 to be placed. After completion, the driving motor 24 drives the rotating support plate 23 to rotate, so that the hoisting mechanism 3 faces the place to be placed, and the servo motor is started to drive the driven roller 42 to move along the directional track 41 with the driving housing 21, and stops after moving to the appropriate position, and drives the hydraulic cylinder to drive the mounting base 51 to fall, and the fixed member 51 connected to the sliding rheostat 52 is fastened. The fixed stopper 53 is fitted with one side of the last placed ballastless track bed plate 1, and then the telescopic rod 36 is extended, so that the bed plate grabbing clamp 37 brings the ballastless track bed plate 1 down. The telescopic rod 36 stops extending before it completely falls. At this time, the distance between the bed plate grabbing clamp 37 and the ground is less than the height of a ballastless track bed plate 1, and the distance to the last ballastless track bed plate 1 is relatively close. The bed plate grabbing clamp 37 is fastened with a magnetic block 55. After the magnetic block 55 is energized, it has magnetism, and the movable stopper 54 fastened with the sliding plate of the sliding rheostat 52 is attracted. , and the slide moves toward the magnetic block 55 until the movable baffle 54 and the magnetic block 55 are attached, and then the driving motor 24 drives the rotating support plate 23 to rotate to expand the distance, and the rotating motor 32 continuously adjusts the placement angle under the detection of the visual probe to keep the placement in a straight line with the previously placed ballastless track bed plate 1. During the movement, because the movable baffle 54 is always in contact with the magnetic block 55, the movable baffle 54 will be moved together, and the resistance value on the sliding rheostat 52 gradually decreases. When the critical point is reached, the current can pass, and the driving motor 24 and the rotating motor 32 stop driving. The magnetic block 55 is powered off and loses its magnetism. The movable baffle 54 no longer attracts the magnetic block 55, and the hydraulic cylinder is driven to lift the mounting base 51. The telescopic rod 36 extends, so that the bed board clamps 37 fit the ground, and the hydraulic cylinder 34 is pushed to start, so that the distance between the two bed board clamps 37 becomes larger, and the bed board clamps 37 and the ballastless track bed board 1 are separated, and then the telescopic rod 36 retracts to complete the placement of a ballastless track bed board 1.

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A limiting device for ballastless track bed plate construction, the limiting device limits the ballastless track bed plate (1), characterized in that: The limiting device comprises a main body mechanism (2), a hoisting mechanism (3), an orientation mechanism (4) and a detection and positioning mechanism (5); the main body mechanism (2) is connected to the hoisting mechanism (3), the main body mechanism (2) is connected to the orientation mechanism (4), the main body mechanism (2) is connected to the detection and positioning mechanism (5), and the hoisting mechanism (3) is connected to the detection and positioning mechanism (5); The main body mechanism (2) comprises a driving housing (21), a driving bracket (22) and a rotating support plate (23); a circular rotating groove (212) is provided on the driving housing (21); the driving housing (21) and the rotating support plate (23) are rotatably connected via the circular rotating groove (212); the driving bracket (22) and the rotating support plate (23) are tightly connected; and the driving housing (21) is connected to a detection and positioning mechanism (5); The detection and positioning mechanism (5) comprises a mounting base (51), a sliding rheostat (52) and a fixed baffle (53); the mounting base (51) is slidably connected to a driving housing (21); a driving hydraulic cylinder is fixedly connected to the bottom of the mounting base (51); the bottom surface of the driving housing (21) is fixedly connected to a fixed end of the driving hydraulic cylinder; the mounting base (51) is placed on a side of the driving housing (21) facing the placed ballastless track bed plate (1); the sliding rheostat (52) is fixedly connected to the mounting base (51); one end of the sliding rheostat (52) is fixedly connected to the fixed baffle (53); and the fixed baffle (53) extends in a direction perpendicular to the sliding rheostat (52).

2. The limiting device for ballastless track slab construction according to claim 1 is characterized in that: The main body mechanism (2) further comprises a driving motor (24) and a supporting rod (25); a mounting groove (211) is provided on the driving housing (21); the mounting groove (211) is communicated with the circular rotating groove (212); the driving motor (24) is connected to the driving housing (21); the driving motor (24) and the mounting groove (211) are tightly connected; the output end of the driving motor (24) is tightly connected to the rotating support disc (23); one end of the supporting rod (25) is tightly connected to the rotating support disc (23); one end of the supporting rod (25) away from the rotating support disc (23) is tightly connected to the driving bracket (22); the driving housing (21) is connected to the orientation mechanism (4); and the driving bracket (22) is connected to the hoisting mechanism (3).

3. The limiting device for ballastless track slab construction according to claim 1 is characterized in that: The hoisting mechanism (3) comprises a fixing plate (31) and a rotating motor (32); the fixing plate (31) and the driving bracket (22) are tightly connected; a rectangular groove (311) is provided on the fixing plate (31); the rotating motor (32) and the rectangular groove (311) are tightly connected; an output end of the rotating motor (32) faces the ground; and an annular rotating groove (312) is provided on the fixing plate (31).

4. The limiting device for ballastless track slab construction according to claim 3 is characterized in that: The hoisting mechanism (3) further comprises a visual probe and a movable clamping plate (33), wherein the visual probe and the movable clamping plate (33) are tightly connected, the detection end of the visual probe faces the ground, an annular protrusion is provided on the movable clamping plate (33), the movable clamping plate (33) is connected to the fixed plate (31), the movable clamping plate (33) is slidably connected to the annular rotating groove (312), the output end of the rotating motor (32) is tightly connected to the movable clamping plate (33), and two push grooves are provided on the surface of the movable clamping plate (33) facing the ground, and the push grooves of the movable clamping plate (33) are symmetrically arranged.

5. The limiting device for ballastless track slab construction according to claim 4 is characterized in that: The hoisting mechanism (3) further comprises a pushing hydraulic cylinder (34) and a driving rod (35). There are two pushing hydraulic cylinders (34). The two pushing hydraulic cylinders (34) are connected to the movable clamping plate (33). The two pushing hydraulic cylinders (34) are respectively placed in two pushing grooves. The fixed ends of the pushing hydraulic cylinders (34) are tightly connected to the wall of the pushing groove. The fixed ends of the two pushing hydraulic cylinders (34) are close to the center of the movable clamping plate (33). There are two driving rods (35). The two driving rods (35) are "T" shaped. The two driving rods (35) are tightly connected to the two pushing hydraulic cylinders (34) respectively. The output end of the pushing hydraulic cylinder (34) is tightly connected to one end of the driving rod (35). The driving rod (35) is slidably connected to the pushing groove. The movable clamping plate (33) is connected to the detection and positioning mechanism (5).

6. The limiting device for ballastless track slab construction according to claim 5 is characterized in that: The hoisting mechanism (3) also includes a telescopic rod (36) and a bed board clamp (37). There are four telescopic rods (36), which are symmetrically arranged on the movable clamp (33). The telescopic rod (36) and the movable clamp (33) are tightly connected. The four telescopic rods (36) are evenly divided into two groups. The two groups of telescopic rods (36) are tightly connected to the two ends of the two driving rods (35) respectively. There are two bed board clamps (37), which are T-shaped. One end of one bed board clamp (37) is tightly connected to a group of telescopic rods (36), and the surface where the other end of the bed board clamp (37) is located is parallel to the ground.

7. The limiting device for ballastless track slab construction according to claim 1 is characterized in that: The orientation mechanism (4) comprises an orientation track (41), a driven roller (42) and a servo motor. The orientation track (41) is laid on the ground. Two orientation tracks (41) are provided. The two orientation tracks (41) are placed in parallel. The track of the orientation track (41) is the path of the ballastless track bed plate (1) to be laid. The orientation track (41) is provided with a moving groove (411). The track of the moving groove (411) is consistent with the track of the orientation track (41). The driven roller (42) is rotatably connected to the bottom of the driving housing (21) through a rotating rod. The number of the driven rollers (42) is not less than four. The driven rollers (42) are connected to the orientation track (41). The driven rollers (42) are meshed with the moving groove (411). The servo motor drives the driven rollers (42).

8. The position limiting device for ballastless track slab construction according to claim 4 is characterized in that: The detection and positioning mechanism (5) further comprises a movable baffle (54), a magnetic block (55) and a reset spring (56); one end of the movable baffle (54) is tightly connected to the sliding rheostat (52); the movable baffle (54) extends in a direction perpendicular to the sliding rheostat (52); the movable baffle (54) is made of metal; one end of the movable clamping plate (33) close to the last placed ballastless track bed plate (1) is tightly connected to the magnetic block (55); the magnetic block (55) is energized through a connecting wire and a power source; a reset spring (56) is tightly connected between the fixed baffle (53) and the movable baffle (54).

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